How To Fix WM01055 - Parallel processing is not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: WM01 - Assortments IS-R Enhancements

• Message number: 055

• Message text: Parallel processing is not possible

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message WM01055 - Parallel processing is not possible ?

  The SAP error message WM01055 "Parallel processing is not possible" typically occurs in the context of Warehouse Management (WM) when there is an attempt to execute a process that cannot be run in parallel due to system constraints or configuration settings. This error can arise in various scenarios, such as during the processing of warehouse tasks, inventory management, or during the execution of certain transactions.
  Causes:
  
  System Configuration: The system may be configured to disallow parallel processing for specific transactions or processes.
  Locking Mechanisms: Certain processes may require exclusive access to resources, leading to locks that prevent parallel execution.
  Transaction Type: Some transaction types inherently do not support parallel processing due to their nature or the way they interact with the database.
  Resource Limitations: The system may be experiencing resource limitations (e.g., CPU, memory) that prevent it from handling multiple processes simultaneously.
  
  Solutions:
  
  Check Configuration: Review the configuration settings in the Warehouse Management module to ensure that parallel processing is enabled where applicable.
  Sequential Processing: If parallel processing is not possible, consider running the process sequentially. This may involve adjusting the batch job settings or manually executing the transaction.
  Review Locks: Use transaction codes like SM12 (to check for locks) to identify if there are any locks that are preventing parallel processing. If necessary, resolve these locks.
  System Performance: Monitor system performance and resource usage. If the system is under heavy load, consider optimizing performance or scheduling jobs during off-peak hours.
  Consult Documentation: Refer to SAP documentation or notes related to the specific transaction or process you are working with to understand any limitations regarding parallel processing.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on configuration settings.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as:
  
  SM12: To check for and manage locks.
  SM37: To monitor background jobs and their statuses.
  SE38: To execute ABAP programs that may be related to the process.
  
  
  Support: If the issue persists, consider reaching out to SAP support for assistance, especially if it is impacting business operations.
  
  By following these steps, you should be able to diagnose and resolve the WM01055 error effectively.